The Examples are intended to help you compare the cost of investing in the Portfolio with the cost of investing in other mutual funds. The Examples assume that you invest $10,000 in the Portfolio for the time periods indicated and then redeem all of your Portfolio shares at the end of those periods. The Examples also assume that your investment has a 5% return each year and that the Portfolio's operating expenses stay the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Strategy [Heading]

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PRINCIPAL STRATEGIES:

Strategy Narrative [Text Block]

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The Portfolio is a "money market fund" that seeks to maintain a stable net asset value, or NAV, of $1.00 per share although there is no guarantee that the Portfolio will maintain a NAV of $1.00 per share.

The Portfolio invests at least 80% and normally substantially all of its net assets in marketable obligations issued or guaranteed by the U.S. government, its agencies or instrumentalities (which may bear adjustable rates of interest). This policy may not be changed without 60 days' prior written notice to shareholders. In addition, the Portfolio invests in the following securities:

. repurchase agreements related to marketable obligations issued or guaranteed by the U.S. government, its agencies or instrumentalities; and

. when-issued securities.

As a money market fund, the Portfolio must meet the requirements of the Securities and Exchange Commission ("Commission") Rule 2a-7. The Rule imposes strict conditions on the investment quality, maturity, and diversification of the Portfolio's investments. Among other things, Rule 2a-7 requires that the Portfolio's investments have (i) a remaining maturity of no more than 397 days unless otherwise permitted by Rule 2a-7, (ii) a weighted average maturity that does not exceed 60 days, and (iii) a weighted average life that does not exceed 120 days. Rule 2a-7 imposes daily and weekly liquidity standards that require the Portfolio to hold investments of at least 10% and 30% of its total assets, respectively, in liquid assets as defined in Rule 2a-7. Rule 2a-7 also limits the Portfolio's investments in illiquid securities to 5% of its total assets.

Risk [Heading]

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PRINCIPAL RISKS:

Risk Narrative [Text Block]

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. MONEY MARKET FUND RISK: Money market funds are sometimes unable to maintain a NAV at $1.00 per share and, as it is generally referred to, "break the buck". In that event, an investor in a money market fund would, upon redemption, receive less than $1.00 per share. The Portfolio's shareholders should not rely on or expect an affiliate of the Portfolio to purchase distressed assets from the Portfolio, make capital infusions, enter into credit support agreements or take other actions to prevent the Portfolio from breaking the buck. In addition, you should be aware that significant redemptions by large investors in the Portfolio could have a material adverse effect on the Portfolio's other shareholders. The Portfolio's NAV could be affected by forced selling during periods of high redemption pressures and/or illiquid markets.

. INTEREST RATE RISK: Changes in interest rates will affect the yield and value of the Portfolio's investments in short-term securities. A decline in interest rates will affect the Portfolio's yield as these securities mature or are sold and the Portfolio purchases new short-term securities with lower yields. Generally, an increase in interest rates causes the value of a debt instrument to decrease. The change in value for shorter-term securities is usually smaller than for securities with longer maturities. In addition, if interest rates on U.S. government securities remain low for an extended period of time, the Portfolio may have difficulties in maintaining a positive yield, paying expenses out of Portfolio assets, or maintaining a stable $1.00 NAV.

. CREDIT RISK: Credit risk is the possibility that a security's credit rating will be downgraded or that the issuer of the security will default (fail to make scheduled interest and principal payments). The Portfolio's investments include U.S. government securities or related repurchase agreements, which have minimal credit risk compared to other investments.

. LIQUIDITY RISK: Liquidity risk exists when particular investments are difficult to purchase or sell, which may prevent the Portfolio from selling out of these securities at an advantageous time or price.

. MANAGEMENT RISK: The Portfolio is subject to management risk because it is an actively managed investment fund. The Adviser will apply its investment techniques and risk analyses in making investment decisions for the Portfolio, but there is no guarantee that its techniques will produce the intended results.

An investment in the Portfolio is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. Although the Portfolio seeks to preserve the value of your investment at $1.00 per share, it is possible that you may lose money by investing in the Portfolio.

Risk Lose Money [Text]

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it is possible that you may lose money by investing in the Portfolio.

Risk Money Market Fund [Text]

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Although the Portfolio seeks to preserve the value of your investment at $1.00 per share, it is possible that you may lose money by investing in the Portfolio.

Risk Not Insured Depository Institution [Text]

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An investment in the Portfolio is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.

Bar Chart and Performance Table [Heading]

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BAR CHART AND PERFORMANCE INFORMATION

Performance Narrative [Text Block]

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The bar chart and performance information provide an indication of the historical risk of an investment in the Portfolio by showing:

. how the Portfolio's performance changed from year to year over the life of the Portfolio; and

. the Portfolio's average annual returns for one year and since inception.

The Portfolio's past performance before and after taxes, of course, does not necessarily indicate how it will perform in the future.

Performance Information Illustrates Variability of Returns [Text]

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. how the Portfolio's performance changed from year to year over the life of the Portfolio; and

. the Portfolio's average annual returns for one year and since inception.

Performance Past Does Not Indicate Future [Text]

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The Portfolio's past performance before and after taxes, of course, does not necessarily indicate how it will perform in the future.

Bar Chart [Heading]

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BAR CHART

Bar Chart Narrative [Text Block]

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Through June 30, 2011, the year-to-date unannualized return for the Portfolio's shares was 0.07%.

Bar Chart Closing [Text Block]

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Calendar Year End(%)

During the period shown in the bar chart, the Portfolio's:

BEST QUARTER WAS UP 1.30%, 2ND QUARTER, 2007; AND WORST QUARTER WAS UP 0.03%, 1ST QUARTER 2010.

Performance Table Heading

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PERFORMANCE TABLE
AVERAGE ANNUAL TOTAL RETURNS
(For the period ended December 31, 2010)

Performance Table Narrative

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You may obtain the most current seven-day yield information of the Portfolio by calling 800-221-5672 or your financial intermediary.

Money Market Seven Day Yield Phone

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800-221-5672

[1]	Inception date: 12/13/2006.